Acting alone, epinephrine and thyroid hormone each stimulates release of only a small amount of fatty acids from adipose cells. In the presence of thyroid hormone, epinephrine causes a much more substantial release of fatty acids from the cells. What is the term describing the effect of thyroid hormone on epinephrine's actions?

A) permissive
B) agonistic
C) direct
D) antagonistic
E) paracrine

Explanation:

The permissive effect is the one in which the presence of one hormone enables another hormone to act

Epinephrine is an endocrine hormone produced by adrenal glands in stress condition and prepare body for fight and flight

Thyroid hormones exert their effects by binding to a specific nuclear receptors to regulate cellular gene expression

Receptor associated with epinephrine signaling are 1,2,β1 and β2

β1 associated trimeric G protein is GS which activate adenylate cyclase enzyme which catalyse production of a potent secondary messenger called cAMP

i think it is dna, i'm not totally sure but i think it might be.

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